package com.zzyl.nursing.service.impl;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.collection.CollectionUtil;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.zzyl.nursing.domain.pojo.NursingLevel;
import com.zzyl.nursing.domain.vo.NursingLevelVo;
import com.zzyl.nursing.mapper.NursingLevelMapper;
import com.zzyl.nursing.service.INursingLevelService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.List;

/**
 * 护理等级Service业务层处理
 * @author alexis
 * @date 2024-12-30
 */
@Service
public class NursingLevelServiceImpl extends ServiceImpl<NursingLevelMapper, NursingLevel> implements INursingLevelService {
    @Autowired
    private NursingLevelMapper nursingLevelMapper;
    
    @Autowired
    private RedisTemplate<Object, Object> redisTemplate;
    
    // 存储护理等级到redis中的key
    private static final String CACHE_KEY_PREFIX="nursingLevel:all";
    
    /**
     * 查询护理等级
     * @param id 护理等级主键
     * @return 护理等级
     */
    @Override
    public NursingLevel selectNursingLevelById(Long id) {
        return nursingLevelMapper.selectById(id);
    }
    
    /**
     * 查询护理等级列表
     * @param nursingLevel 护理等级
     * @return 护理等级
     */
    @Override
    public List<NursingLevel> selectNursingLevelList(NursingLevel nursingLevel) {
        return nursingLevelMapper.selectNursingLevelList(nursingLevel);
    }
    
    /**
     * 新增护理等级
     * @param nursingLevel 护理等级
     * @return 结果
     */
    @Override
    public int insertNursingLevel(NursingLevel nursingLevel) {
        int insert=nursingLevelMapper.insert(nursingLevel);
        // 清除redis中缓存护理等级数据，以达到同步
        redisTemplate.delete(CACHE_KEY_PREFIX);
        return insert;
    }
    
    /**
     * 修改护理等级
     * @param nursingLevel 护理等级
     * @return 结果
     */
    @Override
    public int updateNursingLevel(NursingLevel nursingLevel) {
        int updated=nursingLevelMapper.updateById(nursingLevel);
        // 清除redis中缓存护理等级数据，以达到同步
        redisTemplate.delete(CACHE_KEY_PREFIX);
        return updated;
    }
    
    /**
     * 批量删除护理等级
     * @param ids 需要删除的护理等级主键
     * @return 结果
     */
    @Override
    public int deleteNursingLevelByIds(Long[] ids) {
        int deleted=nursingLevelMapper.deleteBatchIds(Arrays.asList(ids));
        // 清除redis中缓存护理等级数据，以达到同步
        redisTemplate.delete(CACHE_KEY_PREFIX);
        return deleted;
    }
    
    /**
     * 删除护理等级信息
     * @param id 护理等级主键
     * @return 结果
     */
    @Override
    public int deleteNursingLevelById(Long id) {
        int deleted=nursingLevelMapper.deleteById(id);
        // 清除redis中缓存护理等级数据，以达到同步
        redisTemplate.delete(CACHE_KEY_PREFIX);
        return deleted;
    }
    
    /**
     * 查询护理等级Vo列表
     * @param nursingLevel 条件
     * @return 结果
     */
    @Override
    public List<NursingLevelVo> selectNursingLevelVoList(NursingLevel nursingLevel) {
        return nursingLevelMapper.selectNursingLevelVoList(nursingLevel);
    }
    
    
    @Override
    public List<NursingLevelVo> getAllLevelInfo() {
        // 1.首先从redis中取出来，如果redis中没有，则从数据库中查询出来，然后放入redis中
        ValueOperations<Object, Object> ops=redisTemplate.opsForValue();
        List<NursingLevelVo> nursingLevelVoList=(List<NursingLevelVo>) ops.get(CACHE_KEY_PREFIX);
        if (CollectionUtil.isEmpty(nursingLevelVoList)) {
            List<NursingLevel> nursingLevelList=this.list(Wrappers.<NursingLevel>lambdaQuery()
                                                                  .eq(NursingLevel::getStatus,1));
            nursingLevelVoList=BeanUtil.copyToList(nursingLevelList,NursingLevelVo.class);
            // 将从数据库中查询的数据放入到缓存中
            ops.set(CACHE_KEY_PREFIX,nursingLevelVoList);
        }
        // 2.然后如果redis中有，则直接从redis中取出来
        return nursingLevelVoList;
    }
}
